Upgrade your SIEG C4, SC4, or similar-sized lathe with this efficient quick-change tool post. Includes the tool post body and 3 standard holders for 10x10mm lathe tools Key Benefits: Rapid Tool Changes: Swap tools in seconds, eliminating tedious setup. Perfect Fit: Designed specifically for SIEG C4/SC4 lathes and compatible similar models. (80-120mm center height) Essential Kit: Get started immediately with the 3 included holders. Expandable: Easily add parting or boring capabilities with optional holders. Expand your capabilities with optional holders: Parting Blade Holder: Holds 1/2" height parting blades. Boring Bar Holder: Accepts 3/8" bars (with sleeve) or 1/2" bars (without sleeve).